Mark bought gifts for his friends, and each gift cost $9. Let y represent the total cost and x represent the number of gifts. Write an equation to
represent the proportional relationship between the total cost and the number of gifts he bought. (4 points)
Оа
y = 8x

1
y = 8
Oc
y = 9x
Od
1
10
ya

Answers

Answer 1

Answer:

9x=y

Step-by-step explanation:

9 times x will equal the number of gifts (y). so the answer is Oc= y=9x


Related Questions

uses 2 1/2 cups of apple juice and 1 1/2 of carrot juice for a recipe. enter the number of cups of apple juice used for 1 cup of carrot juice

Answers

Answer:

1 3/4

Step-by-step explanation:

if the length of a rectangle is 5/2 + 2W what is its width​

Answers

Answer: W= (L-5/2)/2

Step-by-step explanation:

L= 5/2+ 2w

use algebra by adding and substracting L  first and than W

L-5/2=2W

(L-5/2)/2=W

A roof rises 15 feet vertically and 12 feet horizontally. What is the slope of the​ roof?

Answers

Answer: 15/12 or in simplest form its 5/4

Step-by-step explanation:

Slope is rise/run

Answer:

Do you know rise over run?? The roof goes up 15 feet and to the left or right 12 feet... the slope would be 15/12 or it would be 1.25 (when divided). Hope it helps!

Step-by-step explanation:

How many different triangles ABC can be formed if C=60∘, c=17√3 and a=34?

Answers

Answer:

Jordan, Its been 5 hours, whats the answer?

Step-by-step explanation:

There can be only 1 triangle formed by the given information.

What is triangle?

A triangle is a closed, 2-dimensional shape with 3 sides, 3 angles, and 3 vertices. A triangle is also a polygon.

Given that, ABC can be formed if C=60∘, c=17√3 and a=34

Using the sine law for triangle,

A/sina = B/sinb = C/sinc

34/sina = 17√3/sin60°

⇒ sina = 90°

Since, The triangle ABC is a right triangle,

Hence, There can be only 1 triangle formed by the given information.

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Solve using inverse operations. Show your work. 3(-n + 4) + 5n = 2n

Answers

Answer:

no solution

Step-by-step explanation:

-3n + 12 + 5n = 2n

subtract 2n from both sides to get all the n’s on one side

-3n - 2n + 5n + 12 = 0

Combine n’s Which actually cancel themselves out. This leaves

12 = 0

12 can never equal 0 so there is no solution.

If Moore Motors buys at cost a truck for $4,000 and plans to sell it for $6,000, the percent markup on cost is:​

Answers

Answer: 50%

Step-by-step explanation:

(6000-4000)/4000= 2000/4000

=2/4=1/2

(1/2)100=50

What is the slope of the line that passes through the points (8, -9) and (14,−9)? Write your answer in simplest form.

Answers

Answer:

A horizontel line equation y=0x+-9 the slope is zero slope

Step-by-step explanation:

Answer:

The slope is 0.

Step-by-step explanation:

m=y²-y¹/x²-x¹

m=(-9)-(-9)/14-8

m=0/6

m=0

Find the degree measure of the angle with the given radian measure. (Round your answer to one decimal place.)

Answers

Answer:

108 degrees

Step-by-step explanation:

Since we are not given the radian measure. Let the radian measure be 3π/5 rad;

Using the conversion;

πrad = 180°

3π/5 rad = x

Cross mulriply;

π * x = 180 * 3π/5

x =  180 * 3/5

x = 36 * 3

x = 108 degrees

Hence the degree measure is 108 degrees

Note that the same conversion can be used to convert other values in radians

A restaurant bill is S25, and a 20 percent tip should be given to the waiter. Which expression can be used to find the total
amount that will be paid?
O $25x 0.02
O $25x0 20
O s25x 1.20
O $25x 2 00
Plz help quick

Answers

d is the answerStep-by-step explanation:

What is the value of b in the triangle shown below?
a.-4in
b.4in
c.+4in
d.no solution

Answers

The answer to the question is b.4in

1) Which pair of triangles is congruent by Side - Side - Side?

Answers

pair number 4
all sides are congruent, so it has side-side-side congruence :)

The pair of triangles that is congruent by Side-Side-Side rule of congruency is option 4 .

Required:

The option with a pair of triangles that congruent by Side-Side-Side SSS rule of congruency.

Solution;

The given information in option [1] are;

A pair of congruent alternate interior angles, and a pair of angles  in option [1] are congruent by Angle-Side-Angle rule of congruency.

Option [2]

The information given in option [2] are two angles and an adjacent side, therefore;The length of the triangles in option [2] are congruent by Angle-Angle-Side rule of congruency

Option [3]

From the given parameters, the rule of congruency for option [3] is Side-Angle-Side congruency

Option [4]

The triangles have a common side that is shared.3 tic marks and 2 tic mark indicating that the corresponding sides are congruent are placed on the other two sides.

Therefore, b of one triangle are congruent to the corresponding three sides of the other triangle, indicating that triangles are congruent by Side-Side-Side rule of congruency.

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Look at the figure. Find the value of x.

Answers

10 in. hope this helps:)

A barrel of 20 apples has 2 rotten apples and 18 good apples. 7 apples are selected at random from the barrel. What is the expected number of good apples selected

Answers

Answer:

Expected value = 7 x 0.9 = 6.3

Step-by-step explanation:

Probability of getting a good apple is 18/20 = 0.9

Probability of getting a bad apple is 2/20 = 0.1

This follows a binomial distribution because either you get a good apple or a bad apple.

The expected value of a binomial distribution is given as n*p where n is number of trials and p is the probability of success.

In this case our number of trials is 7 and the probability of success is 0.9, since the trials are for getting good apples.

Hence

n = 7

p = 0.9

Expected value = 7 x 0.9 = 6.3

No I never lied hahahah

Answers

Answer:

liar

Step-by-step explanation:

Can I get a brainliest answer pls

two equations in standard for equivalent to x+y=-10

Answers

Y=-x-10 orrrr y=x+10

1
222
2
599
3
209
Helpppopo

Answers

Answer:

∠1 = 36°

∠2 = 122°

∠3 = 122°

∠4 = 38°

Step-by-step explanation:

∠2 = 180°-58° (Supplementary angles add up to 180°)

    = 122°

∠2 = ∠3 (Vertically opposite angles are equal)

    = 122°

∠1 = 180°-122°-22° (Sum of angles in a triangle is 180°)

   = 36°

∠4 = 180°-122°-20° (Sum of angles in a triangle is 180°)

     = 38°

Acellus help slope intercept

Answers

Greetings.

The answer is y = 2x + 7.

Explanation:

If you are an expert in graph then you are able to find the slope without calculating. (Rise over Run by looking at the graph.)

We can also find the slope by calculating m-value.

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]   ---> Rise Over Run

But how are we gonna calculate if we don't have any two given ordered pairs?

The answer is, we can just pick two ordered pairs that are part of the graph, or rather say that the graph passes through.

The graph passes through (-3,1) and (-2,3).

Then we can calculate the slope by using rise/run.

[tex]m=\frac{3-1}{-2-(-3)}\\m=\frac{2}{-2+3}\\m=\frac{2}{1}\\m=2[/tex]

Thus, the slope is m = 2.

However, we are not done yet. We just only found out the slope. We need to find the y-intercept too.

From Linear Function - [tex]y=mx+b[/tex]

Where m = slope and b = y-intercept.

Since b = y-intercept, we don't need to calculate/substitute x = 0. We simply find which number the graph has y-intercept at.

Which is (0,7), the y-intercept.

Then we substitute b = 7 as y-intercept.

Thus the answer is [tex]y=2x+7[/tex]

Helen borrowed money from her aunt to pay for college expenses. The graph below shows the amount left
on the loan as it is paid off over time. Write a linear equation that describes the amount, A, that Helen owes her
aunt to the number of months, n, since she borrowed the money. Show your work that supports your answer

Answers

Answer:

[tex]y = -100x + 13000[/tex]

Step-by-step explanation:

See attachment for graph

First, we need to take any corresponding values of x and y

[tex](x_1,y_1) = (0,13000)[/tex]

[tex](x_2,y_2) = (130,0)[/tex]

Next, we calculate the slope (m)

[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

[tex]m = \frac{0 - 13000}{130 - 0}[/tex]

[tex]m = \frac{- 13000}{130}[/tex]

[tex]m = -100[/tex]

Next, we calculate the line equation using:

[tex]y - y_1=m(x-x_1)[/tex]

[tex]y - 13000 = -100(x - 0)[/tex]

[tex]y - 13000 = -100x[/tex]

Make y the subject

[tex]y = -100x + 13000[/tex]

Hence, the line equation is:

[tex]y = -100x + 13000[/tex]

I need help on this math question plis ​

Answers

Answer:

B

Step-by-step explanation:

f(x)=2x^(2)-5x-20 find f(-9)

Answers

Answer:

187

Step-by-step explanation:

[tex]f(x) = 2 {x}^{2} - 5x - 20[/tex]

To find f(-9) , substitute the value of x that's - 9 into f (x). That is for every x in f(x) replace it with - 9

We have

[tex]f( - 9) = 2 ({ - 9})^{2} - 5( - 9) - 20 \\ = 2(81) + 45 - 20 \\ = 162 + 25 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ = 187 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: [/tex]

We have the final answer as

187

Hope this helps you

It is -29 u should get this app it helps when you don’t know

a painter painted 3/5 of a portrait in 20 minutes. If she continues working at the same rate, how many portraits will she paint in one hour?

Answers

Answer:

one and four fifths 1 4/5-

Step-by-step explanation:

Determine the angle measure.

Answers

Answer:

the measurement is 30 degrees

Tamara has $42.00 to buy party decorations. She wants to buy 3 packs of party hats, 2 bags of balloons, and a banner

Answers

Answer:

Step-by-step explanation:

Add everything together then you get 22.02 and she could buy everything but you gotta figure out the other part b bc I’m stuck on it

The pizzas you order for home delivery cost $19. The sales tax is 4.9%. What is the total price for the pizza?

Answers

Answer:

23.9

Step-by-step explanation:

you add the percentage to 19


6. When you find the unit rate of an item you are finding the cost of ____.

Answers

Answer:

kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk

Step-by-step explanation:

Need help with this math problem ASAP. Look at the picture attached. The linear function f(x) passes through the points (0,3) and (2,7). A few values from the exponential function g(x) are shown in the table. What is the positive difference in the y-intercept value of f(x) and g(x)?​

Answers

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

[tex]f(x) = 2x + 3[/tex]

And

[tex]g(x) = 2 \times {3}^{x} \\ [/tex]

_________________________________

To find the y-intercept of any equation just need to put 0 (( zero )) instead of the x in the equation...

Let's do it....

_________________________________

In f ( x ) :

[tex]y - intercept = f(0)[/tex]

[tex]f(x) = 2x + 3[/tex]

[tex]f(0) = 2(0) + 3[/tex]

[tex]f(0) = 3[/tex]

Thus :

[tex]y - intercept = 3[/tex]

##############################

In g ( x ) :

[tex]y - intercept = g(0)[/tex]

[tex]g(x) = 2 \times {3}^{x} [/tex]

[tex]g(0) = 2 \times {3}^{0} [/tex]

[tex]g(0) = 2 \times 1[/tex]

[tex]g(0) = 2[/tex]

Thus :

[tex]y - intercept = 2[/tex]

_________________________________

The positive difference in the y-intercept value of f ( x ) and g ( x ) is :

[tex] |3 - 2| = |1| = 1[/tex]

So write this in the box : 1

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And we're done....

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

Using the function g(x) = -2x + 5, what would the input need to be for an output of -5?

Answers

Answer:

5

Step-by-step explanation:

the in put would need to be 5 cuz :

-2 x 5 + 5

-10 + 5

-5

Answer:5

Step-by-step explanation:

Find the simple interest on a loan of 23,000 at 5.4% interest for 11 months

Answers

Answer:

Simple interest=1138.5

Step-by-step explanation:

Simple interest=23000×(5.4/100)×(11/12)

S.I=23000×0.054×(11/12)

S.I=1138.5

In an arithmetic sequence, the seventh term is −9 and the nineteenth term is 39.
Find the common difference. Give only the exact value as your answer.

Answers

Answer:

37.5% that is the answer

Step-by-step explanation:

The required common difference is 4.

What is an arithmatic progression?

An arithmetic progression or arithmetic sequence ( AP ) is a sequence of numbers such that the difference between the consecutive terms is constant.

Now it is given that,

the seventh term, T₇ = −9 and

the nineteenth term, T₉ =  39.

Let a be the first term, d is the common difference and n is the number of term.

Since Tn of the series is given as,

Tn = a + (n-1)d

Therefore,

T₇ = a + (7-1)d

⇒ -9 = a + 6d ...(i)

and,

T₉ = a + (19-1)d

⇒ 39 = a + 18d  ...(ii)

Subtracting equation (ii) by (i) we get,

48 = 12d

or, d = 48/12

⇒ d = 4

Thus, the required common difference is 4.

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PLEASE HELP ME STATTTTTTTTT

A real estate agent has $61 to spend on newspaper ads. Each ad costs $7. After buying as many ads as she can afford, how much money will the real estate agent have left over?

Answers

Answer:

8.714285    repeated

Step-by-step explanation:

Answer:

$5

Step-by-step explanation:

The real estate agent can buy 8 ads for a total of $56. Next you do $61 minus $56 which equals $5. If this answer helped you please consider giving it brainliest.

- •Trix•

( Yes I know my -•Trix• is not my user but its what I would change it to if I could but I can't, please address me as Trix while commenting or talking to me here.)

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